GREST v1.1: Universal Metric Response Validation Package

This package provides the formal manuscript and Python-based validation suite for the GREST (Quadratic Metric Response) model. By locking the acceleration floor to $H_0 = 73.0$ ($a_0 = 1.129 \times 10^{-10} \text{ m/s}^2$), this model provides a unified explanation for gravitational anomalies across six distinct physical scales without the requirement for Dark Matter. The package includes: Theoretical Proof: PDF derivation of the GREST law (v1.1). Core Engine: Python implementation of the acceleration law. Scale Verification: Six automated test scripts covering Relativistic (Black Hole), Solar (1 AU), Stellar (Wide Binaries), Galactic (Spiral & DM-Deficient), and Cluster scales. Instructions: Run GREST_run_all_tests.py to replicate the benchmark results cited in the manuscript.